Jen, I always try to at least look at your threads even if I don't have time to reply. (especially if it involves a photo of my sweet DaVinci, I hope he's feeling ok)
I have been busy at work where we are not allowed to surf the net and I also have a husband and 3 kids and a house to clean and pets to care for, etc., so my free time unfortunately is more limited than in the summer when I don't work.
And like Sasvermont says, we do have to sleep sometimes too.